My method evolved because I'm cheap and have made fibergalss parts for boats.
After CA/BLO for 5+ coats, wet sand 600 through 1500, 3M compound/polish on the lathe. After assembly that expensive wax from England(Renisance) that smells like Kiwi shoe polish.
I have an unopenned pack of Micro Mesh. MM are good, but slower IMHO. I do like Bounty half-sheet paper towels for these processes.
The final finish is 'plastic' in looks and feel. Maybe too glossy. For me that is a problem on some wood pens, like the flags, I am considering using polyurathane spar varnish for the color and tactile difference(in my mind anyway).